Study on the Formalization of Information Processing-oriented Context
LI De-hua1,LIU Gen-hui1,2
1.The State Key Lab of Photographic Information Processing and Intelligent Control ,Institute of Artificial Intelligence , Huazhong University of Science and Technology 2.Institute of Language Information Processing , Huazhong University of Science and Technology
Abstract：One of the key issues in Natural Language Understanding (NLU) is which one of the meanings of a polysemous word or a multi-meaning sentence should be chosen. To deal with this problem , we should concern about not only disambiguation of word , but also of sentence and discourse. Former studies on context are just limited in modern linguistics , but not applied in NLU. Our research aims at constructing the theory of context-based NLU. Because context is one of the most important factors in pragmatics , we first discuss the meaning of context in modern linguistics , then put forward a formal definition of context in computational linguistics , and give examples of Chinese language understanding based on context. As a result , we point out that a new branch of computational linguistics - computational pragmatics will play an important role in the field of computational linguistics.